Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Dirk van Ormondt"'
Autor:
Roland Wiest, Kevin Wingeier, Dirk van Ormondt, Johannes Slotboom, Danielle Graveron-Demilly, Olivier Scheidegger, Dan Stefan
Publikováno v:
Magnetic Resonance in Medicine. 70:25-32
Several practical obstacles in data handling and evaluation complicate the use of quantitative localized magnetic resonance spectroscopy (qMRS) in clinical routine MR examinations. To overcome these obstacles, a clinically feasible MR pulse sequence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3d483df1e76c4143b71f35b33bff789
https://doi.org/10.1002/mrm.24455
https://doi.org/10.1002/mrm.24455
Publikováno v:
NMR in Biomedicine. 21:627-636
By quantification of brain metabolites, localized brain proton MRS can non-invasively provide biochemical information from distinct regions of the brain. Quantification of short-TE signals is usually based on a metabolite basis set. The basis set can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c5e0ec57ed24739d590546a2a472801
https://doi.org/10.1002/nbm.1234
https://doi.org/10.1002/nbm.1234
Autor:
Sabine Van Huffel, Danielle Graveron-Demilly, Diana M. Sima, Dirk van Ormondt, Stephen R. Williams
Publikováno v:
eMagRes
This article describes the use of time-domain processing for analyzing spectra acquired in vivo. The theoretical basis of processing in the time domain is presented, emphasizing that this is also the acquisition domain. Some of the drawbacks of using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89e7b7cfb044a8f3ef29da5510d178ff
https://doi.org/10.1002/9780470034590.emrstm1427
https://doi.org/10.1002/9780470034590.emrstm1427
Autor:
Dirk van Ormondt, Christoph Segebarth, Marc E Bourgeois, Michel Décorps, Danielle Graveron-Demilly, F. T. A. W. Wajer, André Briguet, Muriel Roth
Publikováno v:
Journal of Magnetic Resonance. 163:277-287
This paper analyzes the effects of intra-scan motion and demonstrates the possibility of correcting them directly in k-space with a new automatic retrospective method. The method is presented for series of 2D acquisitions with Cartesian sampling. Usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e552ed8e330b02d86769f1d54a26792d
https://doi.org/10.1016/s1090-7807(03)00154-x
https://doi.org/10.1016/s1090-7807(03)00154-x
Publikováno v:
Journal of Magnetic Resonance, Series A. 119:225-234
Many parameter-estimation algorithms have been developed for the accurate quantification of NMR data modeled as a sum of K exponentially damped sinusoids. Some well-known time-domain techniques based on subspace estimation and the singular value deco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b3947e8a2326305008e25ae7906d7f1
https://doi.org/10.1006/jmra.1996.0077
https://doi.org/10.1006/jmra.1996.0077
Autor:
Cristina, Cudalbu, Sophie, Cavassila, Herald, Rabeson, Dirk, van Ormondt, Danielle, Graveron-Demilly
Publikováno v:
NMR in biomedicine. 21(6)
By quantification of brain metabolites, localized brain proton MRS can non-invasively provide biochemical information from distinct regions of the brain. Quantification of short-TE signals is usually based on a metabolite basis set. The basis set can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f8589b1246c49a11ccb94cf3b55e6186
https://pubmed.ncbi.nlm.nih.gov/18085510
https://pubmed.ncbi.nlm.nih.gov/18085510
Publikováno v:
eMagRes
The sections in this article are 1 Introduction 2 Data Analysis 3 Metabolite Concentrations From Signal Intensities 4 Biographical Sketches Related Articles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::391b483ed1be465599fda85bc67aafb6
https://doi.org/10.1002/9780470034590.emrstm0435
https://doi.org/10.1002/9780470034590.emrstm0435
Autor:
Danielle Graveron-Demilly, Dirk van Ormondt, Yannick Crémillieux, F. T. A. W. Wajer, R. Lethmate
Publikováno v:
EURASIP Journal on Applied Signal Processing, 2003 (5)
EURASIP Journal on Advances in Signal Processing, Vol 2003, Iss 5, Pp 405-412 (2003)
EURASIP Journal on Advances in Signal Processing, Vol 2003, Iss 5, p 794878 (2003)
EURASIP Journal on Advances in Signal Processing, Vol 2003, Iss 5, Pp 405-412 (2003)
EURASIP Journal on Advances in Signal Processing, Vol 2003, Iss 5, p 794878 (2003)
A new method for 2D/3D dynamic MR-Imaging with radial scanning is proposed. It exploits the inherent strong oversampling in the centre of -space, which holds crucial temporal information of the contrast evolution. It is based on (1) a rearrangement o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4ed9b01fb3477c2734cdc91da36a208
http://resolver.tudelft.nl/uuid:f44263ee-8ae1-4954-ba92-61fedde33b3b
http://resolver.tudelft.nl/uuid:f44263ee-8ae1-4954-ba92-61fedde33b3b
Publikováno v:
Signal Processing for Magnetic Resonance Imaging and Spectroscopy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9a3e003ab385e1f2dfa7b89da19b166
https://doi.org/10.1201/9780203908785.ch21
https://doi.org/10.1201/9780203908785.ch21
Publikováno v:
Modern Sampling Theory ISBN: 9781461266327
Motion constitutes a perennial problem in Magnetic Resonance Imaging (MRI). It leads to artifacts in the images. In functional MRI (fMRI), motion is also a major limitation to accurate detection of neuronal activity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d085af78f736226d0fe94ff4c1f8821a
https://doi.org/10.1007/978-1-4612-0143-4_16
https://doi.org/10.1007/978-1-4612-0143-4_16